Serie A's sporting judge on Tuesday handed AS Roma a 3-0 defeat in their opening match at Hellas Verona due to a mix-up over Guinea midfielder Amadou Diawara.
The match, played on Saturday, ended 0-0.
Diawara was fielded in the starting line-up even though he was not named in the 25-man squad list for the game.
Instead, he was on the under-22 players list, as he had been last season.
The problem is that Diawara turned 23 in July.
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